"The dollar is the final term in almost every equation which arises in the practice of engineering in any or all of its branches, except qualifiedly as to military and naval engineering, where in some cases cost may be ignored."

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...I remembered the rose bush that had reached a thorny branch out through the ragged fence, and caught my dress, detaining me when I would have passed on. And again the symbolism of it all came over me. These memories and visions of the poor--they were the clutch of the thorns. Social workers have all felt it. It holds them to their work, because the thorns curve backward, and one cannot pull away.

— Albion Fellows Bacon